Starting device for explosive-engines.



R. F. WEBBER.

STARTING DEVICE FOR EXPLOSIVE ENGINES. APPLICATION FILED JULY 3. IQII.

1,160,475. Patented Nov. 16, 1915.

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Patented Nov. 16,1915.

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RIF WEBBER. STARTING DEVICE FOR EXPLOSIVE ENGINES.

APPLICATION FILED JULY 3.19M.

COLUMBIA PLANOGRAPH C0,. WASHINGTON D c wi lmwoao:

R. F. WEBBER.

STARTING DEVICE FOR EXPLOSIVE ENGINES. APPLICATION FILED JULY 3. IBM.

1 ,1 60,475. Patented Nov. 16, 1915.

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R. F. WEBBER.

STARTING DEVICE FOR EXPLOSIVE ENGINES. APPLICATION FILED JULY 3. I911.

1,1 60,475. Patented Nov. 16, 1915.

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' means throwing the pawl to a position to engage. the ratchet wheel ofthe engine shaft at thelQr :aoLLIn r. WEBBER, or wasnrlveron, DISTRICTor COLUMBIA.

STARTING- DEVICE FOR EXPLOSIVE-ENGINES.

Application filed July 3, 1911.

in starting devices for explosive engines and more particularly to animprovement to the type of starting device disclosedin the applicationof Rollin F. ilVebber and George W. Slater, filed March 19, 1910, SerialNumber 550,518. r

In the operation of starters of this type, the starting of the motor isefiected by the shifting of an arm which is operatively associated withthe motor shaft and is providedwith a pawl which is adapted to cooperatewith a ratchet wheel carried by the engine shaft. I

In the application above referred to, are provided for automaticallybeginning of the starting operation and means are also provided forautomatically disengaging the pawl from its ratchet upon a reversemovement ofthe motor shaft.

The object of the present invention is the provision of improved meansfor actuating the pawl to throw the same into and out of operativeposition. I

A further object of the invention is the provision of means for varyingthe time at which the pawl will be thrown into operative position.

A further object of the present invention 13 theprovision of improvedmeans for ac tuating the actuating arm of the starter from the operatingleverorhandle.

Other objects of the invention will be apparent from the detaileddescription hereinafter when read in connection with the accompanyingdrawings forming a part hereof, wherein a convenient embodiment of theinvention is illustrated, and wherein like characters,v of referencerefer tosimilar parts of the several views.

In the drawings :Figure 1 is a topplan View of the improved startingmechanism,

parts being shown in section,.secured to'the frame of a motor vehicle;Fig. 2 1s a front Specification of Letters Patent. 7

Patented nev. 1c, 1915.

Serial No. 636,793.

elevation of the starting device showing the positions of the parts asthe actuating arm nearszthe end of its movement, the position of theparts when such arm is at the end of the movement being indicated indotted lines; Fig. 3 is a front elevation, parts being shown. insection, of the starting devicein normalposition; Fig. tisasideelevation of theactuatingarm showing the pawlcarried thereby and meansemployed for throw-' ing thepawl. into and out of engagement with theratchet wheel of the motor shaft; Fig. 5 is a longitudinal section ofthe mechanism shown'in Fig.4; Fig. :6 is a side elevation of theoperating leverfor shifting the actuating arm; Fig. 7 is a sideelevation, with parts broken away, showing the hand lever and. the cableextending therefrom to the actuating lever; and Figs. 8, 9 and 10 aredetailed views illustrating the manner of connecting the cable to thehand lever.

Referring now more particularly to the drawings, A represent the sidemembers of a vehicle frame, B the engine for ropelling the vehicle, andC the end of the engine crank shaft to which the engine pis tons areconnected in the usual well known manner; Journaled in the front portionof the vehicle frame and in alinement with the engine crank shaft C is astub shaft C, the outerend of which projects beyond the front portion ofthe vehicle frame and terminatesin a portion which is fashioned for thereception of an ordinary hand crank, should occasion arise for the useof the same; Keyed to the endof the engine crank shaft C is a ratchetwheel C and rigidly mounted upon the stub shaft C is an arm shaft. Thedog or ratchet (Z is in the shape of a bell crank lever, the long arm ofwhich extends'upwardly alongside of the arm D. Mounted in the arm D isaspring pressed member (Z which bears against the rear.

face of the long arm of the pawl d, and j serves to retard the movementof such pawl on its pivot. The long arm of the pawl (Z isprovided justabove the pivotal point of the pawl with apin d which projects outwardlytherefrom, for a purpose to be hereinafter more particularly set forth.

Positioned-at one side of thestub shaftC gated downwardly curved link F,which link is of greater length than the distance hereinbefore referredto pivotally' supported at its lower end to a suitable bracke'. securedto the front portion of the vehicleg, frame, is an upstanding lever Ewhich is of f;.

greater length than the arm D and the outer. end of which is pivotally'connected to the outer end of the arinD by means of an elonbetweenthepivot pins'of the arm D and le" ver E.- The lever E has secured to itslower end a segment E which isprovided'with; a curved periphery for thereception of an actuating cable as will be hereinafter more particularly.set forth. The lever-E isprovided at its'upper end with a bifurcatedportion in which the end of the link F is;

- pivotally secured and such bifurcated por tion is preferably 0E setfrom the main por tion of the lever in order that the link F will bepositioned in substantially the same vertical plane as the segment E.The link i a set screw g which is threaded in the end of the lever Ft Bymeans of the set screw 9'} above described, the bolt G. is rigidlyconnected to the lever F. Such boltvis free to, turn in the arm D. Itwill also be noted that by this construction the bolt maylbe' adjustedcircumferentially in the link F-and secured in any desired positionofvadjustment by means of the set screw g Slidabiyf mounted in the headof'the bolt G is a rod If which terminatesat its; end in an elongatedfoot'portion H, between which foot portion and the head of the bolt isinterposed a coil spring h which tends to force the foot portiondownwardly. The foot portion H is'positioned outside of the upswardly-extending'arm of the pawl (Z and is" I which block is secured tothe outer portion positioned in a plane parallel thereto. The

foot piece is providedwith downwardly in- V clined I surface it at theends thereof and with" a downwardly'extending rounded proe jection: h;which is positioned'between the inclined surfaces at the ends of thefoot por- 7 tion. Downward movement of the foot pore tion'H is limitedby means of a nut 7L which isithreaded upon the upper end of the rodHand whichnormally Works with: in an opening h which is formed in theupper portion of the periphery of the head of the bolt G and which isfashioned to engage the side walls of the nut h so as to preventrotation of the rod If itjisdesired to 2 d },and such link is providedadja cent'its con- Elnectionwith the'arm D with a projection f't'gijwhich is adapted to contact with the upfjwardly extending arm ofthe pawl d after tithe link has been moved to a certain position 7 Iidjust the'throw ofthe rod Hthe same is :levated until the nut 71. iswithdrawn from the recess h in the head of the bolt when suchnut can beturned on the rod. H to any desired extent. i I

The upwardly extending arm of the pawl extends'in close proximity to thelink F -lrelative to the arm D, for a purpose to be ghereinafter moreparticularly'set forth.

I e .1 q 3, Movement of the pawl cl on its pivot is limited by means. ofa stop (Z which projects- ,laterally from the arm D and overliesthe vnose of the pawl. v

Seated in the periphery of thesegment E carried by the lever E is acable I, one end of which is anchored in any suitable manner to the endsof the segment. In the drawings 1 have illustrated a convenient methodof anchoring the cable tothesegment'so that it may be readily removedtherefrom when desired. In the "c0nstruc-' tion shown, the end of thecable is anchored in any suitable manner within a socket a which iscarried by a plate iwhich is adapted to be detachably secured by asuitable fastening bolt 2' to the end of the segment.

The fastening bolt 2' serves tosecure the plate to the end of thesegment and move ment of such plate about its fastening bolt as a pivot"ispreventedby the flanges of the periphery on the segment between whichthe I cable, which is anchored to the plate, is posie tionedr Obviouslyshould it, for any reason,

be desired to detach the cable from the segment, it is only necessary toremove the. fastening'bolt 2' and thus free the plate 2'. The cable Iextends from the segment E transversely of the frame of the machineand-around an idler K which is mounted on a suitable bracket K supportedin any suitable manner from the frame of the machine, and thencerearwardly of the'frame of the machine. 'lhe free end ofthe cabletermi'nates in a loop which engages a'U-shape strap 'L which projects from ablock L of an arm'M which is carried by ashaft M ried by the side barsof the frame of the ma chine. The shaft M is. provided with a suitableoperating handle M and the shaft is'so positioned in the frame of themachine that such operating handle will be accessible to a personoccupyingithe usual drivers seat.

Means are convenientlyemployed for adwhich is ournaledin suitablebearings; cartioned in the outer end thereof and extends longitudinallyofthe arm and the block L has rigidly secured thereto in any desiredmanner a laterally extending bolt Z which is adapted to project throughthe slot m in the arm M. A securing nut Z is threaded upon the outerextremity of the bolt Z. From the construction thus described it will beseen that the block L may be rigidly coupled to the frame M at anydesired distance from.

the shaft M carrying such arm.

When the starting device is not in use, the actuating arm D, lever E,and link F occupy the position shown in Fig. 3, that is to say, theactuating arm extends down wardly from its supporting shaft, the lever Eis inclined so that the outer end thereof will overlie the engine shaft,and the link l occupies a substantially vertical position alongside ofthe engine shaft. then the parts are in this position it will be notedthat the projection f of the link F is in engagement with the long armof the detent or pawl (Z and that such detent or pawl is thus held outof engagement with the teeth of the ratchet wheel of the engine shaft.When the parts are in this position the hand lover M occupies theposition shown in Fig.

'7, all of the parts being normally held in this position by means of aspring N which is interposed between the armD and the frame of themachine.

motor, the operator draws upwardly on the hand lever l. 2 thus pullingupon the cable I and rocking the lever E on its pivot. As the lever E isthus shifted, the. arm D will be moved in a clockwise direction aboutits.

the laterally projecting pin of the pawl] serves to shift the pawl onits pivot a sufiicient distance to cause the nose thereof to engage theteeth of the ratchet wheel on the engine shaft, so that during theremainder of the movement of the actuating arm, the engineshaft will berotated. The peculiar formation of the foot portion H insures theengagement of the dog or pawl d with its ratchet wheel at all times, asduring the passage of said foot portion overthe pin of the pawl, itdelivers to said pin a series of successive blows, the pin first beingengaged by the first inclined end portion h of the foot portion, next bythe, central por- 7 tion 71 and nextby the inclined portion k at theopposite end of said foot portion. It

With the parts in this positiomwhenit is desired to start the will thusbe seen. that if, when thefir'st engaging surface of the foot portioncone tacts with the pin projecting laterally from the pawl, and the pawlis shifted thereby, and should fail to properly engage the ratchet wheelby reason of thenose thereto engaging one of the teeth of such wheel,said pawl would be moved into engagement with the ratchet wheel when thepin 653 thereof was engaged by one of the other contacting surfaces ofthe foot portion H- After the pawl has been moved into operativeengagement with its ratchet wheel, the foot portion Hwill during thecontinued movement of the parts, ride out of engagement with the pin 6Z3of the pawl, but the pawl will remain in engagement with the ratchetwheel until the engine has been started when it will be moved out ofengagement therewith by the contact of the inclined teeth of the ratchetwith the nose of the pawl.

As soon as the engine has been started the operator releases his holdupon the hand lever 1V 2 when the spring N will immediately restore theparts to normal position. During the return of the parts to normalposition the foot portion H of the pawl actuating member will again rideover the laterally projecting pin (Z of the pawl or detent d and returnthe same to normalposi tion, such detent having been already dis engagedfrom the teeth of the ratchet by the inclined faces of such teeth duringthe forward rotation of the engine shaft. Should the, engine shaftreverse during the starting operation the pawl will remain in.

essary to provide means for shifting the pawl in the event of suchoccurrence andto this end the link F is provided with the projection 7,which as the parts approach their normal position, contacts withthe longarm of the pawl and serves to positively move the same out of engagementwith its ratchet.

By adjusting the bolt G in the link F, the foot portion H of the pawlactuating member may be made to engage the ratchet wheel either at thevery beginning of the movement of the arm D or at any time thereafter.This feature of adjusting the timeof actuating the pawl is an importantone as it enables the device to be used in con-. nection with explosiveengines of all kinds regardless of the degree of rotation which.

must be imparted to the engine shaft to ing fro'm the spirit and scopeof the invention asdefined in the appended claims. 1

I claim I .1. A starting device -for motors including an actuating part,coupling means for effecting an operative connection between theactuating part and the motor shaft, means on the actuating part forautomatically rendering said coupling means operative dur mg movement ofthe actuating part, and means for adjusting said last mentioned meanswhereby said coupling is rendered operative at different periods in themovement of the actuating part.

2. A starting device for motors comprising an, actuating arm operativelyassociated with the motor shaft, interlocking members adapted to form aconnection between said actuating arm and the shaft, one of said membersbeing movable, and adjustable means for shifting said movable memberrelative to the actuating arm and into locked engagement with the otherduring a part of the movement of the actuating arm to rotate the shaft.

3QA starting device for motors, including a' pawl and'ratchet, an armcarrying the pawl, means for operating said arm including a movable partpivoted thereto, a pawl actuating member carried by said movable partfor engaging thepawl, and means for adjusting said pawl actuating memberto vary the time of its engagement with the pawl. I

4;. A starting device for motors'including .a pawl and ratchet, an armcarrying the pawl, means connected with said arm for operating the sameincluding a part movable relative thereto, a pawl actuating memberonsaid movable part, for throwing the pawl into engagementwith the ratchetin the forward movement of the device, and means for adjusting said pawlactuating member to vary the time of actuation of said pawl.

5. A starting device for motors including a pawl and ratchet, an armcarrying the pawl, means connected with said arm for operating the sameincluding a part movable relative thereto, a spring pressed pawlactuating member carried by said movable part and provided with afootportion adapted to ride over a portion of the pawl.

6. A. starting device for motors including a pawl and ratchet, an armcarrying the pawl, means connected with said arm for operating the sameincluding a movable part, a spring pressed pawl actuating member carriedbysaid movable part and provided with a foot portion adapted to rideover apart of the pawl during the actuation of the device, said footportion being pro- '7. A starting device for motors,.including a pawland ratchet, an arm carrying the pawl, said pawl'being provided withaproj ection extending laterally therefrom, means connectedwith saidiarm'for operating the same" including apart movable relative thereto, aspring pressed pawl actuating member carried by said movable part andprovided at its lower end with a foot portion adapted to ride over thelaterally extending projection of the pawl.

8. A starting device for motors including a pawl and ratchet, an armcarrying the pawl, means connected with said arm for operating thesame'including a part movable "relatively thereto, a spring pressed pawljustable pawl operating member carried by said movable part'and adaptedto throw the pawl into engagement with the ratchet in the forwardmovement of the device.

10. The combination witha motor, of means for starting the sameincluding a pawl and ratchet connection oneratively as sociated with theengine shaft, an arm carrying said pawl, means for operating the armincluding a link pivotally connected thereto, a pawl actuating membershiftable with said link and operating in the forward movement of thedevice to engage the pawl with the ratchet, and in the reverse movementof the device to disengage the pawl from the ratchet, and means foradjusting said pawl actuating member to vary the time of actuation ofthe pawl.

11. The combination with a motor, .of.

meansfor starting the same including a pawl and ratchet connectionoperatively associated with the engine-shaft, an arm cart rying saidpawl, means for operating the arm including a link, means for pivotallyarmin'cluding a link, means for pivotally connecting the link to the armcomprising a pivot pm passing therethrough,ad ustable means for rigidlycoupling the "pivot pin to the link, and means carried by the pivot pinand adapted in the forward movement of the device to engage the pawlwith the ratchet and in the reverse movement of the device to disengagethe pawl from the ratchet.

13. The combination with a motor, of means for starting the sameincluding a pawl and ratchet connection operatively associated with theengine shaft, an arm carrying said pawl, said pawl being provided with aportion projecting laterally therefrom, means ior operating said armincluding a link, a pivot pin rigid with said link and loosely engagingsaid arm, and a spring pressed pawl actuating member slidably 'mountedin said pivot pin and provided at its lower end with a foot portionadapted to ride over the laterally projecting portion of the pawl duringthe operation of the device.

let. The combination with a motor, of means for starting the sameincluding a pawl and ratchet connection operatively associated with theengine shaft, an arm carrying said pawl, said pawl being provided with aportion projecting laterally therefrom, means for operating said armincluding a link, a pivot pin rigid with said link and loosely engagingsaid arm, and a spring pressed pawl actuating member slidably mounted insaid pivot pin and provided at its lower end with a foot portion adaptedto ride over the laterally pro-i jecting portion of the pawl during theoperation of the device, said foot portion being provided with aplurality of surfaces adapted to successively engage the laterallyprojecting portion of the pawl as it passes thereover.

15. The combination with a motor, of means for starting the sameincluding a pawl and ratchet connection operatively associated with themotor shaft, an arm carrying said pawl, means for operating the armincluding a link, means for pivotally connecting the link to the armcomprising a pivot bolt loosely engaging the link and arm, adjustablemeans for rigidly coupling the pivot bolt to the link, a spring pressedpawl actuating member slidably mounted in said pivot bolt and providedat its lower end with a foot portion adapted to ride over a part of thepawl during the operation of the device 16. The combination with amotor, of

means for starting the same including a pawl and ratchet connectionoperatively as sociated with the engine shaft, an arm carrying saidpawl, means for operating the arm including a link, means for pivotallyconnecting the link to the arm comprising a pivot bolt rigid withsaidlink and loosely engaging said arm, said pivot bolt being provided witha transverse opening through one end thereof, a rod slidably mounted insaid opening and provided at its lower end with a foot portion adaptedto ride over a part of the pawl during the operation of the device, aspring interposed between said foot portion and the head of the bolt,and a nut adjustably secured upon the free end of said rod. 7 I

17. The combination with a motor, of means for starting the same,including a pawl and ratchet connection operatively associated with theengine shaft, an arm carrying said pawl, means for operating the armincluding a link, means for pivotally connecting the link to said armcomprising a pivot bolt rigid with said link and loosely engaging saidarm, said pivot bolt being provided with a recess in the periphery ofthe head. thereof and said bolt laving an opening extending transverselythrough the head thereof and opening into the said recess, a rodslidably mounted in the opening in the head of the bolt and provided atits lower end with a foot portion adapted to ride over a portion of thepawl during the operation of the device, a spring interposed betweensaid foot portion and the head of the starting means and a nut adustable on the free end of said rod and normally fitting within therecess in the periphery of the head of the bolt.

18. A starting device for motors, comprising an arm operativelyassociated with the motor shaft, an operating lever, apivotedlinkconnection between said lever and arm,

a pawl and ratchet connection between the arm and motor shaft, and alongitudinally yieldable pawl actuating member carried by said link andmovable therewith, said pawl actuating member being provided with afootportion adapted to engage and ride over a portion of the pawl during theoperation of the device.

19. A starting device for motors comprising an arm operativelvassociated with the motor shaft, an operating lever, a pivoted linkconnection between said lever and arm, a pawl and ratchet connectionbetween the arm and the motor shaft, and a vieldable pawl actuatingmember carried by the pivoted link and movable therewith, said pawlactuating member having a footportion provided' with a plurality ofcontact surfaces adapted to successively engage and ride over a portionof the pawl during the operation of the device.

20. A starting device for motors comprising an arm operativelyassociated with the motor shaft, an operating lever, a pivot ed linkconnection between said lever and arm, a pawl and ratchet connectionbetween the arm and the motor shaft a pawl actuating member carried bysaid link'and movable therewith to throw the pawl into and out ofengagement with the ratchet, when the operating lever is shifted, andmeans for adjusting said pawl actuating member "motor shaft, a ratchetwheel on the motor' to vary the time of actuation of the pawl.

21. A starting device for motors comprising an arm operativelyassociated with the motor shaft, a ratchet wheel on the motor shaft, apawl carried by said arm and adapted to cooperate with said ratchetwheehsaid pawl being provided with a member projecting laterallytherefrom, an operating lever, a link pivotally connecting saidvoperating lever and said arm, a longitudinally yieldable pawl actuatingmember carried by said link and movable therewith.

" said pawl actuating membe being provided at its lower end with a footportion adapted shaft, a pawl carried by said arm and adapted tocooperate with said ratchet wheel, said pawlbeing provided with a memberprojecting laterally therefrom, an operating lever, a linkpivotallyconnecting said opcrating lever and said arm, a longitudinally yieldablepawl actuating member carried by;

said linkand movable therewith, said pawl actuating member beingprovided at its lower'end with a foot portion'adapted to engage and rideover the member projectmg from'thepawl, means for ad ust1ng sald pawlactuating member longitudinally, and means for adjusting said pawlactuating member angularly relative to said link.

23. A starting device for motors comprisingan arm operatively associatedwith the motor shaft, a ratchet wheel on the motor shaft,1a pawl carriedby said arm, means for actuating said arm, and means actlngautomatlcally upon the actuation of said arm for successively engagingsaid pawl to throwv the same into engagement with itsxratchet;

24:. The combination with a motor, of means for starting the samecomprising an arm operatively associated with the motor shaft, a lever,a link connection between the ends of said lever and said arm, a segmentcarried by said lever, a cable overlying said] 7 segment and secured toone end thereof,

means for actuating said cable to shift said lever, and means forreturning the parts to normal position.

25. The combination with a motor, of means for starting the samecomprising an arm operatively associated with the motor shaft, a lever,a link connection between the ends of said lever and said arm, aggroovedsegmentcarried by saidlever, a cable'overlying-the periphery of saidsegment and anchored to one end thereof, a hand lever connected to theotherend-o-f said cable, and means for holding the parts in normal position. I

26, The. combination with a motor, of means for starting the samecomprising an arm operatively associated with the motor shaft, a leverpositioned at one side of the motor shaft, a link connecting the freeends of said lever and said arm, a segment'carried by said lever, acable overlying the pe riphery of said segment'and having one endanchored thereto, a hand lever, and an adjustable connection between theother end of said cable and said hand lever.

27. The combination with a motor, of means for starting the samecomprising an arm operatively associated with the motor shaft, a lever,a link connection between the free ends of the lever and said arm, aseg-. ment carried by said lever, a cable overlying the periphery ofsaid segment and having one end thereof anchored thereto, an

operating shaft, an arm extending from said operating shaft, and meansfor adjustably securing the other end of said cable to said arm; Y

28. The combination with a motor, of

means for starting the same including an in presence of two Witnesses.

I ROLLIN F. WEBBER1,

Witnesses:

JAS. E. HUTCHINSON, CALVIN T. MILANS.

.Gopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

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